What the hell @youtube! Just because I'm watching someone to play Hollow Knight does NOT mean I want to see a video of a girl coming to terms with her own imminent death! WTF is wrong with you?
Just to confirm, have you tried marking these videos as *Not interested* by clicking on the 3 - dot menu? This will influence how YouTube suggests videos to you in the future. Here's more about managing your recommendations: https://goo.gl/mfD7rf . Hope this helps.